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UNTTFD STATES PATENT OFFICE.

E. G. BURNHAM, OF SPRINGFIELD, MASSACHISETTS, ASSIGNOR L'O IIIMSEIVJF AND HENRY A. CIL-'XPIN VALVULAR ARRANGEMENT FOR BASIN-COCKS, &C.

Speccaton of Letters Patent No. 17,539, dated June 9, 1857'.

Tc all rwhom it may concern.n

De it known that I, EDwARD Gr. BURN HAM, of Springfield, in the county of Hampden and State of lviassachusetts, have invented a new and Improved later-Faucet, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which-- Figure l, is a view of a basin cock. Figs. 2, 3, A, 5, 6, and 7, details, which will be referred to hereafter.

The great objection to basin cocks ofthe kind shown in the drawing Fig. l, is their liability after the parts have become worn, to leak when they are stopped otl, and this in :tact is the trouble with water and steam cocks iii general.

To overcome this, and to construct a cock that shall not be liable to leak as the valve wears, is the obj ect of my present invention.

To enable others skilled in the art to understand and use my invention, I will proceed to describe the manner in which I have carried out the saine.

In the accompanying drawings Fig. l is a basin cock consisting of the stem formed in several pieces tor the convenience of inserting the valve and spring and of the nozzle B, which also serves as a handle by which to turn on, and stop ottn the water. This nozzle is screwed into the head C, a section of which with part of the nozzle is shown at Fig. 2. To the lower part of the head is attached the hollow cam shaped piece a, which rests upon the top of the valves Fig. 5. Fig. 3 is a longitudinal section through this valve, and the central portion A2 of the stem. rThe upper end of this valve D, Fig. 3, is formed with an inclined elevated portion l). It has cut in one side a slot c, through which passes the screw d, allowing the tube or valve D to slide up and down a short distance in A2. This tube is closed at the bottom and has holes e to admit the passage ot' the water when the valve is forced down. The lower end is formed with a cap or conical projection f, which ts into a corresponding seat in the lower end of A2. The lower portion A of the stem (a longitudinal section of which is seen at Fig. 4,) is recessed at its upper part for the reception of a spiral spring g. This re- Cess is somewhat enlarged at the top of lz., for the accommodation of the end of the valve D, when it is forced down, and to allow the water to tlow around it. It has cut on it a screw by which the cock is secured in its place, and at its upper end at z' a female screw into which the bottoni of the portion A2 is screwed. A2 is bored out to receive the tube D, which slides up and down in it. A recess is formed in the top of it at 7u, in which tits the lower end of the head C. A ring of india rubber Z is inserted in this recess. The lower part m of the head C rests upon this ring and turns thereon, the shoulder n resting on the top of A2.

Fig. 6 is a section of a cap E, Fig. l, which fits around the head C at 0. (It is slipped over the head before the nozzle is screwed in.) The interior is enlarged for a portion of its depth, and the cap at j), rests upon the shoulder n. A female screw on the inside serves to screw this cap down onto A2, which has a corresponding screw on its upper end.

Fig. 7 is a section of a nut or band F, Fig. l, which is screwed over the head of A2 at y, and by turning which nut up against the cap E, the cap is held in place after being screwed down.

Operation: The spring s being placed in the upper part of A and the tube D secured in A2 by the screw d, the lower part of A2 and upper part of A are screwed together, the spring g forcing the conical part f of D up against its seat.l In this posit-ion no water can pass through the holes e, the head C is placed on the top of A2, (the nozzle B being in a position at right angles to that shown in the drawings,) the cap E is screwed down onto A2, securing it and the head together and pressing the part m down onto the india rubber ring Z. The ring E, which had been previously screwed over the head ot A2, is now turned back against the cap E, which it holds in its place. As the nozzle B is brought around to the front into the pop sition shown in Fig. l, the cain 0, passes up onto the portion of the tube D, forcing it down against the resistance of the spring g,

' when the water flowing around the part f in the recess L will enter the holes e and pass up through the tube D and head C, and out at the nozzle B.

have spoken heretofore only of one kind of cock, but it is evident that the above arrangement of cam a and sliding tube or valve D may be applied to various kinds of cocks, among which I may mention gage cocks for steam boilers, without departing from the principle of my invention.

I do not claim operating a valve by means of a cam, as th'is is found on various faucets, nor do I claim a faucet or basin cock, as made with a turning bib or nozzle and a tubular stem having a rotary valve working against a concentric seat, as such is liable to leakage. I employ a sliding valve or disk, movable in the direction of its axis and operating against either a flat or tapering seat and moved toward and away from the same by the action of a spring and a cam or cams, while the bib or nozzle is being turned horizontally as described. In this way I do not employ rubbing surfaces or those which but I make use of such as are not liable to such derangement, the same rendering my improved faucet or basin cock an article of new construction and one of much value, consequently.

I claim- The above described new manufacture of basin cock or faucet as made with a turning bib or nozzle, a sliding valve and a tubular stem operated by means substantially asidescribed.

E. G. BURNI-IAM.

In presence of- HENRY A. CHAPIN, SIMON BROOKS. 

